| commit | dc1442204a2235b1ad0c4bdceb3580c97f71f1b5 | |
| author | Guenter Roeck <linux@roeck-us.net> | |
| Thu, 20 Aug 2015 15:52:35 +0000 (20 08:52 -0700) | ||
| committer | Michael Tokarev <mjt@tls.msk.ru> | |
| Thu, 8 Oct 2015 16:46:01 +0000 (8 19:46 +0300) | ||
| tree | 94736c920956c58188d0674cfd5e4986d75acb1d | treesnapshot (tar.gz zip) |
| parent | 7af0fc994e85c0ff16eda6d7e328427b02a01008 | commitdiff |
imx_serial: Generate interrupt on tx empty if enabled
Generate an interrupt if the tx buffer is empty and the tx empty interrupt
is enabled. This fixes a problem seen when running a Linux image since
Linux commit 55c3cb1358e ("serial: imx: remove unneeded imx_transmit_buffer()
from imx_start_tx()"). Linux now waits for the tx empty interrupt before
starting to send data, causing transmit stalls until there is an interrupt
for another reason.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Generate an interrupt if the tx buffer is empty and the tx empty interrupt
is enabled. This fixes a problem seen when running a Linux image since
Linux commit 55c3cb1358e ("serial: imx: remove unneeded imx_transmit_buffer()
from imx_start_tx()"). Linux now waits for the tx empty interrupt before
starting to send data, causing transmit stalls until there is an interrupt
for another reason.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
| hw/char/imx_serial.c | diffblobblamehistory |